#include <iostream>
using namespace std;
//基类People

class ConstantInfo {
public:
    uint8_t tag;
    virtual  void print(int index) {};
};

class ConstantUtf8Info : public ConstantInfo {
    public:
    uint16_t length;
    const char *bytes;

    ConstantUtf8Info(){
        bytes = "hello";
    };

    virtual  void print(int index){
        printf("utf8");
    };
};


int main(int argc, char const *argv[])
{
    uint32_t i = 1;
    printf("%llx\n", ((uint64_t)i) << 32);
    printf("%llx\n", ((uint64_t)i));
}
